<!doctype html>
<html class="reftest-wait"><head>
<style>
html {
  background-image: -moz-linear-gradient(black, white 20%);
  background-repeat: repeat-x;
  background-size: 1px 80%;
}
body {
  font-size: 1em;
  padding: 2em;
  margin: 50px auto;
  width: 28em;
  border: 1px solid black;
  background-color: white;
}
</style>
<script>
window.addEventListener("MozReftestInvalidate", function() {
  document.body.style.width = "14em";
  document.documentElement.removeAttribute("class");
}, false);
</script>
</head><body>
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</body>
</html>
